{"id":181276,"date":"2024-11-09T15:42:17","date_gmt":"2024-11-09T07:42:17","guid":{"rendered":"https:\/\/server.hk\/cnblog\/181276\/"},"modified":"2024-11-09T15:42:17","modified_gmt":"2024-11-09T07:42:17","slug":"%e6%b7%b1%e5%85%a5%e7%90%86%e8%a7%a3%e6%95%b8%e6%93%9a%e5%ba%ab%e6%9f%a5%e8%a9%a2%e5%85%a7%e9%80%a3%e6%8e%a5%e7%9a%84%e6%87%89%e7%94%a8%e5%92%8c%e5%af%a6%e7%8f%be%e5%8e%9f%e7%90%86%ef%bc%88%e6%95%b8","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/181276\/","title":{"rendered":"\u6df1\u5165\u7406\u89e3\u6578\u64da\u5eab\u67e5\u8a62\u5167\u9023\u63a5\u7684\u61c9\u7528\u548c\u5be6\u73fe\u539f\u7406\uff08\u6578\u64da\u5eab\u67e5\u8a62\u5167\u9023\u63a5\uff09"},"content":{"rendered":"<h1 id=\"%e6%b7%b1%e5%85%a5%e7%90%86%e8%a7%a3%e6%95%b8%e6%93%9a%e5%ba%ab%e6%9f%a5%e8%a9%a2%e5%85%a7%e9%80%a3%e6%8e%a5%e7%9a%84%e6%87%89%e7%94%a8%e5%92%8c%e5%af%a6%e7%8f%be%e5%8e%9f%e7%90%86-bmIeiZqGKN\">\u6df1\u5165\u7406\u89e3\u6578\u64da\u5eab\u67e5\u8a62\u5167\u9023\u63a5\u7684\u61c9\u7528\u548c\u5be6\u73fe\u539f\u7406<\/h1>\n<p>\u5728\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\u4e2d\uff0c\u67e5\u8a62\u662f\u7528\u6236\u8207\u6578\u64da\u9032\u884c\u4ea4\u4e92\u7684\u4e3b\u8981\u65b9\u5f0f\u3002\u5167\u9023\u63a5\uff08Inner Join\uff09\u662f\u6700\u5e38\u7528\u7684\u67e5\u8a62\u985e\u578b\u4e4b\u4e00\uff0c\u5b83\u5141\u8a31\u7528\u6236\u5f9e\u591a\u500b\u8868\u4e2d\u6aa2\u7d22\u76f8\u95dc\u6578\u64da\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e\u5167\u9023\u63a5\u7684\u61c9\u7528\u5834\u666f\u53ca\u5176\u5be6\u73fe\u539f\u7406\uff0c\u5e6b\u52a9\u8b80\u8005\u66f4\u597d\u5730\u7406\u89e3\u9019\u4e00\u91cd\u8981\u6982\u5ff5\u3002<\/p>\n<h2 id=\"%e5%85%a7%e9%80%a3%e6%8e%a5%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%a6%82%e5%bf%b5-bmIeiZqGKN\">\u5167\u9023\u63a5\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n<p>\u5167\u9023\u63a5\u662f\u4e00\u7a2e\u5c07\u5169\u500b\u6216\u591a\u500b\u8868\u4e2d\u7684\u884c\u6839\u64da\u67d0\u4e9b\u689d\u4ef6\u9032\u884c\u5339\u914d\u7684\u64cd\u4f5c\u3002\u53ea\u6709\u7576\u5339\u914d\u689d\u4ef6\u6210\u7acb\u6642\uff0c\u76f8\u95dc\u7684\u884c\u624d\u6703\u88ab\u9078\u53d6\u3002\u9019\u610f\u5473\u8457\uff0c\u5167\u9023\u63a5\u7684\u7d50\u679c\u96c6\u53ea\u5305\u542b\u5728\u6240\u6709\u53c3\u8207\u8868\u4e2d\u90fd\u5b58\u5728\u7684\u6578\u64da\u3002<\/p>\n<h3 id=\"%e5%85%a7%e9%80%a3%e6%8e%a5%e7%9a%84%e8%aa%9e%e6%b3%95-bmIeiZqGKN\">\u5167\u9023\u63a5\u7684\u8a9e\u6cd5<\/h3>\n<p>\u5728 SQL \u4e2d\uff0c\u5167\u9023\u63a5\u7684\u57fa\u672c\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre><code>SELECT \u5217\u540d\nFROM \u88681\nINNER JOIN \u88682\nON \u88681.\u5217\u540d = \u88682.\u5217\u540d;<\/code><\/pre>\n<p>\u9019\u88e1\uff0c<code>INNER JOIN<\/code> \u95dc\u9375\u5b57\u7528\u65bc\u6307\u5b9a\u5167\u9023\u63a5\uff0c<code>ON<\/code> \u5b50\u53e5\u5247\u7528\u65bc\u5b9a\u7fa9\u5339\u914d\u689d\u4ef6\u3002<\/p>\n<h2 id=\"%e5%85%a7%e9%80%a3%e6%8e%a5%e7%9a%84%e6%87%89%e7%94%a8%e5%a0%b4%e6%99%af-bmIeiZqGKN\">\u5167\u9023\u63a5\u7684\u61c9\u7528\u5834\u666f<\/h2>\n<p>\u5167\u9023\u63a5\u5728\u8a31\u591a\u5be6\u969b\u61c9\u7528\u4e2d\u90fd\u975e\u5e38\u91cd\u8981\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u898b\u7684\u61c9\u7528\u5834\u666f\uff1a<\/p>\n<ul>\n<li><strong>\u6578\u64da\u6574\u5408\uff1a<\/strong>\u5728\u4e00\u500b\u96fb\u5b50\u5546\u52d9\u5e73\u53f0\u4e2d\uff0c\u53ef\u80fd\u6709\u4e00\u500b\u7528\u6236\u8868\u548c\u4e00\u500b\u8a02\u55ae\u8868\u3002\u901a\u904e\u5167\u9023\u63a5\uff0c\u53ef\u4ee5\u8f15\u9b06\u67e5\u8a62\u6bcf\u500b\u7528\u6236\u7684\u8a02\u55ae\u4fe1\u606f\u3002<\/li>\n<li><strong>\u5831\u544a\u751f\u6210\uff1a<\/strong>\u5728\u751f\u6210\u696d\u52d9\u5831\u544a\u6642\uff0c\u5167\u9023\u63a5\u53ef\u4ee5\u5e6b\u52a9\u6574\u5408\u4f86\u81ea\u4e0d\u540c\u8868\u7684\u6578\u64da\uff0c\u4ee5\u4fbf\u9032\u884c\u5206\u6790\u3002<\/li>\n<li><strong>\u6578\u64da\u7be9\u9078\uff1a<\/strong>\u5167\u9023\u63a5\u53ef\u4ee5\u7528\u65bc\u7be9\u9078\u51fa\u7b26\u5408\u7279\u5b9a\u689d\u4ef6\u7684\u6578\u64da\uff0c\u4f8b\u5982\u67e5\u8a62\u6240\u6709\u6709\u8a02\u55ae\u7684\u7528\u6236\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%85%a7%e9%80%a3%e6%8e%a5%e7%9a%84%e5%af%a6%e7%8f%be%e5%8e%9f%e7%90%86-bmIeiZqGKN\">\u5167\u9023\u63a5\u7684\u5be6\u73fe\u539f\u7406<\/h2>\n<p>\u5167\u9023\u63a5\u7684\u5be6\u73fe\u539f\u7406\u4e3b\u8981\u4f9d\u8cf4\u65bc\u6578\u64da\u5eab\u7684\u67e5\u8a62\u512a\u5316\u5668\u3002\u7576\u7528\u6236\u57f7\u884c\u4e00\u500b\u5167\u9023\u63a5\u67e5\u8a62\u6642\uff0c\u6578\u64da\u5eab\u6703\u6839\u64da\u8868\u7684\u5927\u5c0f\u3001\u7d22\u5f15\u7684\u5b58\u5728\u8207\u5426\u7b49\u56e0\u7d20\uff0c\u9078\u64c7\u6700\u512a\u7684\u57f7\u884c\u8a08\u5283\u3002\u4ee5\u4e0b\u662f\u5167\u9023\u63a5\u7684\u5e7e\u500b\u95dc\u9375\u6b65\u9a5f\uff1a<\/p>\n<ol>\n<li><strong>\u89e3\u6790\u67e5\u8a62\uff1a<\/strong>\u6578\u64da\u5eab\u9996\u5148\u89e3\u6790\u7528\u6236\u7684 SQL \u67e5\u8a62\uff0c\u78ba\u5b9a\u6d89\u53ca\u7684\u8868\u548c\u5217\u3002<\/li>\n<li><strong>\u751f\u6210\u57f7\u884c\u8a08\u5283\uff1a<\/strong>\u6578\u64da\u5eab\u6839\u64da\u7d71\u8a08\u4fe1\u606f\u751f\u6210\u57f7\u884c\u8a08\u5283\uff0c\u9078\u64c7\u5408\u9069\u7684\u7b97\u6cd5\uff08\u5982\u5d4c\u5957\u5faa\u74b0\u3001\u5408\u4f75\u9023\u63a5\u6216\u54c8\u5e0c\u9023\u63a5\uff09\u4f86\u57f7\u884c\u5167\u9023\u63a5\u3002<\/li>\n<li><strong>\u57f7\u884c\u67e5\u8a62\uff1a<\/strong>\u6839\u64da\u751f\u6210\u7684\u57f7\u884c\u8a08\u5283\uff0c\u6578\u64da\u5eab\u958b\u59cb\u5f9e\u8868\u4e2d\u6aa2\u7d22\u6578\u64da\uff0c\u4e26\u6839\u64da\u5339\u914d\u689d\u4ef6\u9032\u884c\u904e\u6ffe\u3002<\/li>\n<li><strong>\u8fd4\u56de\u7d50\u679c\uff1a<\/strong>\u6700\u5f8c\uff0c\u6578\u64da\u5eab\u5c07\u7b26\u5408\u689d\u4ef6\u7684\u7d50\u679c\u96c6\u8fd4\u56de\u7d66\u7528\u6236\u3002<\/li>\n<\/ol>\n<h2 id=\"%e5%85%a7%e9%80%a3%e6%8e%a5%e7%9a%84%e6%80%a7%e8%83%bd%e8%80%83%e9%87%8f-bmIeiZqGKN\">\u5167\u9023\u63a5\u7684\u6027\u80fd\u8003\u91cf<\/h2>\n<p>\u5728\u4f7f\u7528\u5167\u9023\u63a5\u6642\uff0c\u6027\u80fd\u662f\u4e00\u500b\u91cd\u8981\u7684\u8003\u91cf\u56e0\u7d20\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u512a\u5316\u5167\u9023\u63a5\u67e5\u8a62\u6027\u80fd\u7684\u5efa\u8b70\uff1a<\/p>\n<ul>\n<li><strong>\u4f7f\u7528\u7d22\u5f15\uff1a<\/strong>\u70ba\u53c3\u8207\u5167\u9023\u63a5\u7684\u5217\u5275\u5efa\u7d22\u5f15\uff0c\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\u3002<\/li>\n<li><strong>\u907f\u514d\u4e0d\u5fc5\u8981\u7684\u9023\u63a5\uff1a<\/strong>\u53ea\u5728\u9700\u8981\u7684\u6642\u5019\u4f7f\u7528\u5167\u9023\u63a5\uff0c\u907f\u514d\u4e0d\u5fc5\u8981\u7684\u6578\u64da\u8655\u7406\u3002<\/li>\n<li><strong>\u9078\u64c7\u5408\u9069\u7684\u6578\u64da\u985e\u578b\uff1a<\/strong>\u78ba\u4fdd\u53c3\u8207\u9023\u63a5\u7684\u5217\u4f7f\u7528\u76f8\u540c\u7684\u6578\u64da\u985e\u578b\uff0c\u4ee5\u907f\u514d\u96b1\u5f0f\u8f49\u63db\u5e36\u4f86\u7684\u6027\u80fd\u640d\u5931\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-bmIeiZqGKN\">\u7e3d\u7d50<\/h2>\n<p>\u5167\u9023\u63a5\u662f\u6578\u64da\u5eab\u67e5\u8a62\u4e2d\u4e00\u500b\u975e\u5e38\u91cd\u8981\u7684\u6982\u5ff5\uff0c\u80fd\u5920\u6709\u6548\u5730\u5f9e\u591a\u500b\u8868\u4e2d\u6aa2\u7d22\u76f8\u95dc\u6578\u64da\u3002\u901a\u904e\u7406\u89e3\u5176\u57fa\u672c\u539f\u7406\u548c\u61c9\u7528\u5834\u666f\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u66f4\u597d\u5730\u8a2d\u8a08\u548c\u512a\u5316\u6578\u64da\u5eab\u67e5\u8a62\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u6578\u64da\u8655\u7406\u7684\u61c9\u7528\uff0c\u9078\u64c7\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> 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